Mystery object seen in sky on World UFO Day

A mystery object in the sky surprised and confused people near Denver. So, what was it?

http://www.wcsh6.com/video/2524640491001/1/Mystery-object-seen-in-sky-on-World-UFO-Dayhttp://bcdownload.gannett.edgesuite.net/kusa/34295199001/34295199001_2523149524001_th-51d37347e4b0cd5153f823bc-1083021587001.jpg?pubId=34295199001Mystery object seen in sky on World UFO DayA mystery object in the sky surprised and confused people near Denver. So, what was it?as seen onJuly 2013asseenonKUSAjul13localNewsevenings01:00